Recent questions in Physics

+137 votes

0 answers

How many atoms are there in two molecules of water?

asked Nov 19, 2022 in Physics by AstralFlare

+162 votes

0 answers

Can acceleration of space due to dark energy prove that the big bang occurred earlier than 13.8 billions of years ago?

asked Nov 19, 2022 in Physics by KellyGreen111

+18 votes

0 answers

A piston whose area is 60cm² moves through a distance of 20cm against a pressure of 3 atmosphere. What is the work done in joules and calories?

asked Nov 19, 2022 in Physics by MartinPL

+285 votes

0 answers

How much force would it take to knock a person off their feet if they were standing still?

asked Nov 19, 2022 in Physics by robgul

+23 votes

0 answers

Since the law of thermodynamics says that matter and energy cannot be created or destroyed then how can the mass of an object increase as it as it approaches the speed of light?

asked Nov 18, 2022 in Physics by TonyKay

+7 votes

0 answers

Why does the spin cycle of a washer last a very long time if much of the water is gone from the clothes well before it stops spinning?

asked Nov 18, 2022 in Physics by mike jay

+3 votes

0 answers

What are the forces that act on a structure during an earthquake?

asked Nov 18, 2022 in Physics by RadiantCharm

+15 votes

0 answers

How can equatorial waves in the ITCZ be caused by the conservation of potential vorticity when the Coriolis force equals zero at the equator?

asked Nov 18, 2022 in Physics by Blindfitter

+17 votes

0 answers

How much thrust do exhaust pipes create?

asked Nov 18, 2022 in Physics by Frank Gleeson

+311 votes

0 answers

Why does a rocket keep moving upwards even after the thrust has finished?

asked Nov 18, 2022 in Physics by SolarisNova

+13 votes

0 answers

What is the relationship between energy and matter? How does one become the other?

asked Nov 18, 2022 in Physics by Rhysie boi

+11 votes

0 answers

How is it possible that people have traveled so far in space and time if we can't exceed the speed of light?

asked Nov 18, 2022 in Physics by NebulaPulse

+3 votes

0 answers

What is the approximate speed of a stone at the point of turning back to the ground when thrown with a speed of 20m/s towards the flying bird?

asked Nov 18, 2022 in Physics by QuantumDreamer

+14 votes

0 answers

How far can we travel at near-light speeds?

asked Nov 18, 2022 in Physics by Plumber001

+26 votes

0 answers

What are some decent online courses available for mechanical engineers who have just completed school level physics and chemistry (but not college)?

asked Nov 18, 2022 in Physics by Tilt

+10 votes

0 answers

Is it possible to time travel in 1607?

asked Nov 18, 2022 in Physics by Al1980

+21 votes

0 answers

What would happen to me if I travel at the speed of light?

asked Nov 18, 2022 in Physics by EmberSculptor (2.0k points)

+26 votes

0 answers

Why are nuclear fusion projects focusing on large-scale reactors?

asked Nov 18, 2022 in Physics by itailor369

+26 votes

0 answers

What is the current state of research on faster-than-light travel? Are there any technologies or inventions that could allow us to travel faster than light? If so, why haven't they been developed yet?

asked Nov 17, 2022 in Physics by ThermalEvent

+27 votes

0 answers

Can Mercury's orbit be explained with special relativity alone, without any classical mechanics (Newtonian)?

asked Nov 17, 2022 in Physics by StellarMystic

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